{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2019-16791",
        "STATE": "PUBLIC",
        "TITLE": "downgrade of effective Strict Transport Security (STS) policy in postfix-mta-sts-resolver"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "postfix-mta-sts-resolver",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 0.5.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Snawoot"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/Snawoot/postfix-mta-sts-resolver/security/advisories/GHSA-h92m-42h4-82f6",
                "refsource": "CONFIRM",
                "url": "https://github.com/Snawoot/postfix-mta-sts-resolver/security/advisories/GHSA-h92m-42h4-82f6"
            },
            {
                "name": "https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b",
                "refsource": "MISC",
                "url": "https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-h92m-42h4-82f6",
        "discovery": "UNKNOWN"
    }
}